You can have four possible answers: • One or several advices on one or several squares and the grid in progress is correct. • One or several advices on one or several squares but the grid in progress is wrong. • No advice possible and the grid in progress is wrong. • Input Error with equal numbers in row, colomn or area.

Rules:

Our irregular Sudoku puzzles are 9 X 9 sudoku. Instead of having nine 3 X 3 square areas, these 9 areas are irregular shapes. The rules are the same as for a classic sudoku. You need to find by deduction nine different digits by row, column and area.

Browser:

We recommend Google Chrome which is easy to use and displays with impressive speed advice and various solutions sent by the server.

Directions:

This page allows you to enter the solution of an irregular sudoku grid.

Entering a number with the mouse: • Select your square by clicking in it. • Click on one of the numbers in the left column.

Entering a number with the keyboard: • You can move the cursor with the four arrow keys and the Tab key on the keyboard. • Type the number in the appropriate square.